Analysis Of RCC Bridge Under Blast Loading Effect Using Different Loading Cases
Author(s):
Ansari Ahmad Wafa Ahmad Hasan, Karale S. A., Sanap Santosh Tukaram
Keywords:
Accidental fireworks explosion, Blast loads, civil infrastructure, Dynamic response, Petrochemical and military facilities
Abstract
Most of the literatures are limited to response of simple structures. These studies provide a good fundamental knowledge regarding blast load effects in actual blast explosions. The interaction between blast loads and structures, as well as the interaction among structural members may well affect the structural response and damage. Therefore it is necessary to analyze the structures under blast load effects. Among all the civilian structures bridges are considered to be the most vulnerable to terrorist threat and hence detailed investigation in the dynamic response of these structures is essential. Analysis of structural failure of a bridge caused by an accidental fireworks explosion is becoming important to study. The analysis of the highway bridges under blast loads requires accurate generation and application of blast loads and good understanding of the behavior of components of the bridges during high strain rate loading encountered during blast loads. Blast-related issues have become extremely important for civil infrastructure, and no longer con-fined to petrochemical and military facilities, as proven from the history of this modern era. Blast incidents can happen under accidental or intentional circumstances, which are both unpredictable since human behavior is involved. These blast events could cause critical injuries along with heavy casual-ties in addition to disastrous structural failure, there-by giving rise to detrimental economic and social impacts, both domestically as well as internationally.
In this study the response of the bridge structure is studied when subjected to the blast loads. Finite element modeling tool ETABS is used for the analysis of structure. A simply supported three span continuous bridge is to be taken for analysis purpose. The design and analysis of such structure requires a detailed understanding when subjected to blast phenomenon. The dynamic response on the various component parts of the bridge structure is also studied. This will give the complete understanding of blast effects on bridge structure.
Article Details
Unique Paper ID: 157791
Publication Volume & Issue: Volume 9, Issue 8
Page(s): 82 - 87
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